Anyone know of a script (or use one) that will parse through an html file and get all of the links that are to images? I need to be able to run the script against web files and not just local ones, as well.

I would point you to the "HTML::LinkExtor" module, part of the HTML-Parser distribution, because that is what I use. Does the job just fine for me and writing the supporting code to implement this module was pretty straight forward. I have not tried it against web files but the module's SYNOPSIS clearly uses an "http://" example.